Richard Quan, MD
Professor
Pediatrics - Fresno
School of Medicine

Clinical Professor, UCSF

Richard Quan, M.D. is board certified in Pediatrics and Pediatric Gastroenterology.

He earned his medical degree from the University of South Alabama, College of Medicine. He completed his Pediatric Residency at the University of Alabama-Birmingham. He trained at Stanford University in Pediatric Gastroenterology/Nutrition and did a postdoctoral fellowship conducting research in Gastroenterology.

He has held academic positions at the University of Texas, Southwestern, the University of Nevada, the University of California-Davis, the Medical University of South Carolina, and the University of North Carolina-Chapel Hill. He was a medical officer at the Food and Drug Administration in the Center for Food Safety and Applied Nutrition, assisting in the regulation of infant formula and other products. He has many years of clinical experience in private practice and he seeks to pass his knowledge and experience to the next generation of pediatricians.

• Characterizing Nighttime Acid Reflux in Children. Ann Pediatr Child Health 3(2):1037
  Koral A, Quan R, Marcin JP, Haight M, Quiros JA
• Complications of intravenous fat in preterm infants. J Perinatal 4:43, 1984
  Quan R, Kerner JA
• Dietary Nucleotides: Potential for Immune Enhancement. Dynamic Nutrition Research, In Foods, Nutrition and Immunity; eds Paubert Braquet M, Dupont CH, Paoletti R. Vol1:13 21, 1992
  Quan R.
• Differences in lactase molecular species between adult & infant rats. Ped. Res. 27:114A, 1990
  Quan R.
• Do infants need nucleotide supplemented formula for optimal nutrition? JPediatr Gastroenterol Nutr. 11:429 37, 1990
  Quan R, Barness LA, and Uauy R.
• Effect of dietary nucleotides on growth and the maturation of the developing gut in the rat. J Pediatr Gastroenterol Nutr. 10:497 503, 1990
  Uauy R, Stringel G, Thomas R, Quan R.
• Effects of a commercial starch blocker preparation on carbohydrate digestion and absorption; in vivo and in vitro studies. Am J Clin Nutr 38:498 503, 1988
  Hollenbeck CB, Coulston AM, Quan R, Becker TR, Vreman HJ, Stevenson DK, Reaven GM.
• Effects of microwave radiation on anti-infective factors in human milk. Pediatrics. 89(4):667 669, 1992
  Quan R, Yang C.
• Endoscopic Ultrasound in Children: Applications and Pitfalls. the UC Davis Experience. Gastrointestinal Endoscopy., Vol: 71, Issue: 5, 2010
  Quiros JA, Haight M, Quan R.
• Expression of an isoform of manganese superoxide dismutase in a child with multiple deletions of the human mitochondrial DNA Pediatric Research 47 (4) 238A 1401 Part 2 Suppl. S, Apr, 2000
  Anziano P, Quan R, Mize C.
• Growth hormone releasing factor immunoreactivity in human endocrine tumors. Am J Pathol117:167 170, 1984
  Bostwick DG, Quan R, Hoffman AR, Webber RJ, Chang K, Bensch KG.
• Growth of children following othotopic liver transplant: 7-year experience. ASPEN, January, 1994
  Quan R, Benser M.
• Incidence and Impact of 6-Mercaptopurine "High Methylators" in Pediatric IBD Clinical Practice Journal of Pediatric Gastroenterology & Nutrition: November 2006- Volume 43- Issue- p S50
  Quiros JA, Gehrich M, Quan R, Marcin J, Malloy F, Tennyson L, Nieves R, Prindiville T.
• Intestinal lactase. Shift in intracellular processing to altered, inactive species in the adult rat. J Bioi Chern. 265:15882 15888, 1990
  Quan R, Gray G.
• Mitochondrial DNA deletions associated with a novel, isoform of human manganese superoxide dismutase. Journal of Investigative Medicine 48(2): 212A 167 Mar, 2000
  Anziano P, Quan R, Mize C.
• Nucleotides & gastrointestinal development. In Seminars in Pediatric Gastroenterology and Nutrition. 2:3 6, 1991
  Quan R, Uauy R.
• Nutrient regulation of intestinal surface membrane hydrolases. In Nutrition and the Origins of Disease; ed Halstead CH, Rusker RB. Academic Press, 1988
  Gray GM, Reisenauer AM, Quan R.
• Role of dietary nucleotides to intestinal development and repair: Implication for infant nutrition. J Nutr 1994 Aug; 124(8Suppi):1436S 1441S
  Quan R and Uauy R.
• Safety and Efficacy of Endoscopic Management of Intestinal Strictures in Pediatric Crohn's Disease, J Pediatr Gastroenterol Nutr:Nov 2006; 43, S49-S50
  Quiros JA, Quan R, Malloy F, Tennyson L, Picornell Y, Dubinsky M, Prindville T.
• Severe pseudomembranous enterocolitis in a child: case report and literature review. Pediatr Infect Dis J 8:876 882, 1989
  Zwiener J, Belknap W, Quan R.
• Sucrase a dextrinase in the rat: postinsertional conversion to inactive molecular species by a carbohydrate free diet. J of Clin lnvest.91:2785 2790, 1993
  Quan R, Gray G.
• The effect of nutritional additives on anti-infective factors in human milk. Clin. Pediatr 1994 Jun;33(6) 325 8
  Quan R, Yang C.
• Utility of oligonucleotide array-based comparative genomic hybridization for detection of target gene deletions. Clin Chern. 2008 Jui;S4(7):1141-8. Epub 2008 May 16
  Wong U, Dimmock D, Geraghty MT, Quan R, Lichter-Konecki U, Wang J, Brundage EK, Scaglia F, Chinault AC.